The opposite of unfinished (incomplete) would be finished (completed or ended).
The opposite (or antonym) of "unfinished" is "complete" or "finished."
incomplete, undone, unfinished, unperfected
Unfinished.
There are 3 syllables in the word unfinished
An Unfinished Journey was created in 1986.
Unfinished Sympathy was created in 1990.
An Unfinished Race was created in 1873.
The Unfinished Symphony was created in 2005.
Unfinished Picture was created in 1973.
Unfinished Revolution was created in 1987.
The Unfinished Revolution was created in 2001.
Unfinished Tales was created in 1980.